<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>参数列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
            <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区 -->
      <el-table :data="goodslist" border stripe>
           <el-table-column type="index"></el-table-column>
           <el-table-column label="商品名称" prop="goods_name"></el-table-column>
           <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
           <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
           <el-table-column label="创建时间" prop="add_time" width="140px">
               <template slot-scope="scope">
                   {{scope.row.add_time | dateFormat}}
               </template>
           </el-table-column>
           <el-table-column label="操作" width="130px">
               <template slot-scope="scope">
                   <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                   <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
               </template>
           </el-table-column>
      </el-table>

      <!-- 分页区 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
        //查询参数对象
        queryInfo: {
            query: '',
            pagenum: 1,
            pagesize: 10
        },
        //商品列表
        goodslist: [],
        //商品总条数
        total: 0
    };
  },
  created() {
      this.getGoodList();
  },
  methods: {
      //根据分页获取对应的商品列表
      async getGoodList(){
        const {data: res} = await this.$http.get('goods', {params: this.queryInfo});
        if(res.meta.status !== 200){
            return this.$message.error('获取商品列表失败！');
        }
        this.$message.success('获取商品列表成功！');
        console.log(res.data);
        this.goodslist = res.data.goods;
        this.total = res.data.total;
      },
      handleSizeChange(newSize){
          this.queryInfo.pagesize = newSize;
          this.getGoodList()
      },
      handleCurrentChange(newPage){
          this.queryInfo.pagenum = newPage;
          this.getGoodList()
      },
      async removeById(id){
          const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if(confirmResult !== 'confirm'){
            return this.$message.info('已取消删除')
        }
        const {data: res} = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !==200){
            return this.$message.error('删除失败');
        }
        this.$message.success('删除成功');
        this.getGoodList()
      },
      goAddpage(){
          this.$router.push('/goods/add')
      }
  },
};
</script>

<style scoped>
</style>